Finding the Fourth Proportional to 2,388.43, 3,296.46 and 1,340.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.43 : 3,296.46 = 1,340.83 : x
2. Step 2: Convert to fraction form
   2,388.43/3,296.46 = 1,340.83/x
3. Step 3: Cross multiply
   2,388.43x = 3,296.46 × 1,340.83
4. Step 4: Simplify right side
   2,388.43x = 4,419,992.46
5. Step 5: Solve for x
   x = 4,419,992.46/2,388.43
6. Step 6: Final answer
   x = 1,850.58